Chigoba chosefa theka (6002-2 FFP2)
Kapangidwe kazinthu
Zosefera zidapangidwa ndikukutidwa ndi pamwamba 50g zosalukidwa, wosanjikiza wachiwiri ndi thonje la mpweya wotentha wa 45g, wosanjikiza wachitatu ndi zinthu zosefera za FFP2, wosanjikiza wamkati ndi 50g wopanda nsalu.
EN 6002-2 EN149 FFP2 imayesedwa pansi pa EN 149: 2001 + A: 2009 Zipangizo zotetezera kupuma - Kusefa masks a theka kuti ateteze ku tinthu ting'onoting'ono
Kugwirizana ndi khungu
Zida zomwe zingakhudze khungu la wovalayo sizidziwika kuti zingayambitse mkwiyo kapena zotsatira zina zoipa pa thanzi. (Wadutsa)
Kutentha
Mukayesedwa, chigoba chosefa theka sichidzawotcha kapena kuti chisapitirire kuyaka kwa masekondi opitilira 5 mutachotsedwa pamoto. (Wadutsa)
Mpweya wa carbon dioxide uli mu mpweya wopuma
Mpweya wa carbon dioxide womwe uli mu mpweya wopuma (malo akufa) usapitirire pafupifupi 1.0% (voliyumu). (Wadutsa).
Munda wa masomphenya
Munda wa masomphenya ndi wovomerezeka ngati utsimikiziridwa muzoyesa zogwira ntchito. (Wadutsa)
Kukana kupuma
| Gulu | Kukana kwakukulu kololedwa (mbar) | ||
| Kukoka mpweya | Kutulutsa mpweya | ||
| 30 L/mphindi | 95 L / mphindi | 160 L / mphindi | |
| FFP1 | 0.6 | 2.1 | 3.0 |
| FFP2 | 0.7 | 2.4 | 3.0 |
| FFP3 | 1.0 | 3.0 | 3.90 |
(Kudutsa) Kupaka Zomwe zili pansipa zizikhala zodziwika bwino komanso zokhazikika pamapaketi ang'onoang'ono omwe amapezeka pamalonda kapena zowoneka bwino ngati zoyikazo zikuwonekera. 1.Dzina, chizindikiritso kapena njira zina zozindikiritsira wopanga kapena wopereka 2.Chizindikiro cha mtundu 3. Gulu Loyenera (FFP1, FFP2 kapena FFP3) lotsatiridwa ndi malo amodzi ndi 'NR' ngati tinthu tasefa theka chigoba chimangogwiritsidwa ntchito kusuntha kamodzi kokha. Chitsanzo: FFP2 NR. 4.Nambala ndi chaka chofalitsidwa cha European Standard 5.Osachepera chaka chomaliza cha moyo wa alumali. 6.Zomwe amapangira zosungirako (osachepera kutentha ndi chinyezi)
Chigoba chosefa theka la tinthu tatsimikiziridwa kuti chimapereka chitetezo chabwinoko ku madontho, ma aerosols ndi kulowa kwamadzimadzi ndikupanga chisindikizo cholimba pakamwa ndi mphuno.
Masks azachipatala / opaleshoni amapereka chotchinga pakati pa ziwalo zopumira ndi malo ozungulira. Kugwira ntchito kwa chigoba kumaso kapena chopumira kumatsimikiziridwa ndi zinthu ziwiri zofunika, kusefa bwino komanso kukwanira (kutuluka kwa nkhope). Kusefedwa kumayesa momwe chigoba chimasefa timachulukira mu kukula kwake, komwe kumaphatikizapo ma virus ndi tinthu tating'ono tating'onoting'ono, pomwe kukwanira kumayesa momwe chigoba kapena chopumira chimalepheretsa kutayikira mozungulira nkhope. Kutengera miyezo ya Food and Drugs Administration (FDA) komanso kusefera moyenera, masks azachipatala amatha kugawidwa m'magulu osiyanasiyana. Izi zimagawidwa mu ASTM level 1, 2 ndi 3 kutengera mphamvu yamadzimadzi yokana. Level 3 imapereka kusefera kwapamwamba kwambiri kwa mabakiteriya ndikukana kwambiri kulowa kwamadzi am'thupi. Ku Europe, masks azachipatala amatsatira zofunikira za European Standard EN 14683:2019.
Komabe, masks opangira opaleshoni sagwira ntchito poyerekeza ndi opumira. Zopumira zimakhala ndi zida zoteteza zothina kapena zotsuka mpweya zomwe zimatha kuteteza tinthu ting'onoting'ono (<5 μm) kuti zisadutse panjira yopuma ya munthu. Izi zimatheka pochotsa zonyansazo kapena popereka mpweya wodziyimira pawokha wopuma. Amatchulidwa mosiyana m'mayiko osiyanasiyana. Ku USA, National Institute for Occupational Safety and Health (NIOSH), imatsimikizira kusefa kwa makina opumirawa ndipo amagawidwa kukhala N-, R-, ndi P-series chifukwa chosamva mafuta, osamva mafuta pang'ono komanso osamva mwamphamvu, motsatana. Aliyense wa mndandanda atatu osiyana kusefera efficiencies pa 95, 99 ndi 99.97%, kutanthauza N95, R95, P95, etc. Mu Europe, magulu respirators akhoza m'gulu monga kusefa theka masks (sefa nkhope zidutswa (FFP)), masks theka, zoyendetsedwa mpweya-kuyeretsa mpweya ndi respirator (PAPR). Malinga ndi miyezo yaku Europe, ma FFP amagawidwanso mu FFP1, FFP2 ndi FFP3, ndi mphamvu ya 80%, 94% ndi 99%, motsatana (EN 149:2001).
